pandora/oxdb/backend/views.py
2010-01-26 07:54:05 +05:30

655 lines
19 KiB
Python

# -*- coding: utf-8 -*-
# vi:si:et:sw=4:sts=4:ts=4
import os.path
import re
from datetime import datetime
from urllib2 import unquote
import json
from django.db.models import Q, Avg, Count
from django.contrib.auth.models import User
from django.shortcuts import render_to_response, get_object_or_404, get_list_or_404
from django.template import RequestContext
from django.core.paginator import Paginator
from django import forms
from django.http import HttpResponse
from django.contrib.auth.decorators import login_required
try:
import simplejson as json
except ImportError:
from django.utils import simplejson as json
from oxdjango.shortcuts import render_to_json_response
from oxdjango.decorators import login_required_json
import models
import utils
from daemon import send_bg_message
from oxuser.views import api_login, api_logout, api_register, api_recover, api_preferences
def api(request):
if not 'function' in request.POST:
return apidoc(request)
function = request.POST['function']
#FIXME: possible to do this in f
#data = json.loads(request.POST['data'])
#FIXME: security considerations, web facing api should not call anything in globals!!!
f = globals().get('api_'+function, None)
if f:
response = f(request)
else:
response = {'status': 404, 'statusText': 'Unknown function %s' % function}
response = render_to_json_response(response)
return response
def api_hello(request):
'''
api('hello', functio(result) { result.user })
'''
response = {'status': 200, 'statusText': 'ok'}
response.user = request.user.json()
return render_to_json_response(response)
'''
field.length -> movie.sort.all()[0].field
o=0&n=100
a & b | c & d
query
l=user:name or l=name
q=year:1980,hello,country:usa
q=year:1980,hello,country:!usa
q=title:^the$
q=title:^100%24$
q=year:<1970,year:>1960
q=year:<1960,year:>1950,title:sex
!1960-1970
2009.08.02.22.26.35-2009.08.02.22.26.35
!^the
(dddd.dd.dd)-(dddd.dd.dd)
5-8
10000-20000
<2009-08-02-22-26-35
>2009-08-02-22-26-35
2009-08-02-22-26-35<
^the the*
*foo foo$
*foo* foo
s=director:asc,year:desc default: director:asc,year:desc
r=0:100 or r=100 or r=100: default: 0:100
p=id,title,director,date,cast.length default: title,director,year,country
q
List data backend spec:
url = //url for request
params = [] //additional params passed to url, i.e. query, or group
the url must understand the following requests:
number of items:
url?params&n=1
> {items: N}
items sorted by key range X to Y:
url?params&s=key:asc|desc&r=X:Y
> {items: [{k0:v0, k1:v1...}, {k0:v0, k1:v1...}]}
Examples:
/json/find?l=all&s=title&f=all&q=&a=desc&p=id,title,director,date,cast.length
/json/find?r=0:100&l=all&s=title&f=all&q=&a=desc&p=id,title,director,date,cast.length
{
movies=[
{
"id":
"title": "fsdf",
"director":
},
]
}
#get sort order for all ids
/json/find?r=0:1000&l=all&s=title&f=all&q=&a=desc&p=id
{
movies=[
{
"id": id
},
]
}
/json/find?l=all&s=title&f=all&q=&a=desc
{
movies: 1234,
files: 2345,
pixels: 1242345345,
size: 1235,
duration: 1235,
}
/json/find?r=0:100&l=all&s=[name, items]&f=all&q=&a=desc&g=country
{
groups = [ {name:"USA", movies: 123}, {name:"UK", movies: 1234} ]
}
#find as you type: in table, by sort string
#auto compleat in find box
'''
def _order_query(qs, s, prefix='sort__'):
order_by = []
for e in s.split(','):
o = e.split(':')
if len(o) == 1: o.append('asc')
order = {'id': 'movieId'}.get(o[0], o[0])
order = '%s%s' % (prefix, order)
if o[1] == 'desc':
order = '-%s' % order
order_by.append(order)
if order_by:
qs = qs.order_by(*order_by)
return qs
def _parse_query(request):
get = json.loads(request.POST['data'])
query = {}
query['i'] = 0
query['o'] = 100
query['s'] = 'title:asc'
def parse_dict(s):
d = s.split(",")
return [i.strip() for i in d]
_dicts = ['p', ]
_ints = ['n', ]
for key in ('s', 'p', 'g', 'l', 'n'):
if key in get:
if key in _ints:
query[key] = int(get[key])
elif key in _dicts:
query[key] = parse_dict(get[key])
else:
query[key] = get[key]
query['q'] = models.Movie.objects.find(request)
if 'r' in get:
r = get['r'].split(':')
if len(r) == 1: r.append(0)
if r[0] == '': r[0] = 0
if r[1] == '': r[0] = -1
query['i'] = int(r[0])
query['o'] = int(r[1])
#group by only allows sorting by name or number of itmes
return query
def api_find(request):
'''
data: {'q': query, 's': sort, 'r': range}
query: query string, can contain field:search more on query syntax at
http://wiki.0xdb.org/wiki/QuerySyntax
sort: comma seperated list of field:order, default: director:asc,year:desc
range: result ragne, from:to or from
'''
query = _parse_query(request)
response = {}
if 'p' in query:
response['items'] = []
qs = _order_query(query['q'], query['s'])
if 'n' in query:
response = {'items': qs.count()}
else:
_p = query['p']
def only_p(m):
r = {}
if m:
m = json.loads(m)
for p in _p:
r[p] = m[p]
return r
qs = qs[query['i']:query['o']]
response['items'] = [only_p(m['json']) for m in qs.values('json')]
elif 'g' in query:
if query['s'].split(':')[0] not in ('name', 'items'):
query['s'] = 'name'
#FIXME: also filter lists here
response['items'] = []
name = 'name'
items = 'movies'
movie_qs = query['q']
_objects = {
'country': models.Country.objects,
'genre': models.Genre.objects,
'language': models.Language.objects,
'director': models.Person.objects.filter(cast__role='directors'),
}
if query['g'] in _objects:
qs = _objects[query['g']].filter(movies__id__in=movie_qs).values('name').annotate(movies=Count('movies'))
elif query['g'] == "year":
qs = movie_qs.values('imdb__year').annotate(movies=Count('id'))
name='imdb__year'
if 'n' in query:
response['items'] = qs.count()
else:
#replace normalized items/name sort with actual db value
order_by = query['s'].split(":")
if len(order_by) == 1:
order_by.append('desc')
if order_by[0] == 'name':
order_by = "%s:%s" % (name, order_by[1])
else:
order_by = "%s:%s" % (items, order_by[1])
qs = _order_query(qs, order_by, '')
qs = qs[query['i']:query['o']]
response['items'] = [{'title': i[name], 'items': i[items]} for i in qs]
else:
#FIXME: also filter lists here
movies = models.Movie.objects.filter(available=True)
files = models.File.objects.all()
response['items'] = movies.count()
response['files'] = files.count()
r = files.aggregate(Count('size'), Count('pixels'), Count('duration'))
response['pixels'] = r['pixels__count']
response['size'] = r['size__count']
response['duration'] = r['duration__count']
return render_to_json_response(response)
def api_getItem(request):
'''
api('getItem', id)
return item with id
'''
response = {'status': 200, 'statusText': 'ok'}
itemId = json.loads(request.POST['data'])
item = models.Movie.objects.get(movieId=itemId)
response['item'] = item.json()
return render_to_json_response(response)
def api_editItem(request):
'''
api('editItem', {key: value})
{'status': 500, 'statusText': 'not implemented'}
'''
response = {'status': 500, 'statusText': 'not implemented'}
return render_to_json_response(response)
def api_removeItem(request):
'''
api('removeItem', itemId)
{'status': 500, 'statusText': 'not implemented'}
'''
response = {'status': 500, 'statusText': 'not implemented'}
return render_to_json_response(response)
def api_addLayer(request):
'''
api('addItem', {key: value})
{'status': 500, 'statusText': 'not implemented'}
'''
response = {'status': 500, 'statusText': 'not implemented'}
return render_to_json_response(response)
def api_removeLayer(request):
'''
api('removeItem', layerId)
{'status': 500, 'statusText': 'not implemented'}
'''
response = {'status': 500, 'statusText': 'not implemented'}
return render_to_json_response(response)
def api_editLayer(request):
'''
api('editLayer', {key: value})
{'status': 500, 'statusText': 'not implemented'}
'''
response = {'status': 500, 'statusText': 'not implemented'}
return render_to_json_response(response)
def api_addListItem(request):
'''
api('addListItem', {key: value})
{'status': 500, 'statusText': 'not implemented'}
'''
response = {'status': 500, 'statusText': 'not implemented'}
return render_to_json_response(response)
def api_removeListItem(request):
'''
api('removeListItem', {key: value})
{'status': 500, 'statusText': 'not implemented'}
'''
response = {'status': 500, 'statusText': 'not implemented'}
return render_to_json_response(response)
def api_addList(request):
'''
api('addList', {key: value})
{'status': 500, 'statusText': 'not implemented'}
'''
response = {'status': 500, 'statusText': 'not implemented'}
return render_to_json_response(response)
def api_editList(request):
'''
api('editList', {key: value})
{'status': 500, 'statusText': 'not implemented'}
'''
response = {'status': 500, 'statusText': 'not implemented'}
return render_to_json_response(response)
def api_removeList(request):
'''
api('removeList', {key: value})
{'status': 500, 'statusText': 'not implemented'}
'''
response = {'status': 500, 'statusText': 'not implemented'}
return render_to_json_response(response)
#@login_required_json
def api_update(request):
'''
params:
archive = string
files = json
'''
print "update request"
data = json.loads(request.POST['data'])
archive = data['archive']
files = data['files']
archive = models.Archive.objects.get(name=archive)
print "update request for", archive.name
needs_data = []
rename = {}
for oshash in files:
print 'checking', oshash
data = files[oshash]
q = models.ArchiveFile.objects.filter(archive=archive, file__oshash=oshash)
if q.count() == 0:
print "adding file", oshash, data['path']
f = models.ArchiveFile.get_or_create(archive, oshash)
f.update(data)
if not f.file.movie:
send_bg_message({'findMovie': f.file.id})
#FIXME: only add if it was not in File
else:
f = q[0]
if data['path'] != f.path:
f.path = data['path']
f.save()
if f.file.needs_data:
needs_data.append(oshash)
if f.path != f.file.path:
rename[oshash] = f.file.path
print "processed files for", archive.name
#remove all files not in files.keys() from ArchiveFile
response = {'status': 200, 'statusText': 'ok'}
response['info'] = needs_data
response['rename'] = rename
return render_to_json_response(response)
def api_upload(request): #video, timeline, frame
'''
upload video, timeline or frame
'''
response = {'status': 500, 'statusText': 'not implemented'}
return render_to_json_response(response)
def api_editFile(request): #FIXME: should this be file.files. or part of update
'''
change file / imdb link
'''
response = {'status': 500, 'statusText': 'not implemented'}
return render_to_json_response(response)
def api_parse(request): #parse path and return info
'''
api('guess', {path:'Foobar/The Matrix.avi'})
{imdb: ...}
'''
path = json.loads(request.POST['data'])['path']
response = utils.parsePath(path)
response = {'status': 500, 'statusText': 'ok', data: response}
return render_to_json_response(response)
def api_guess(request): #guess imdb based on title, director, year
'''
api('guess', {title:'The Matrix'})
{imdb: ...}
'''
response = {'status': 500, 'statusText': 'not implemented'}
return render_to_json_response(response)
#FIXME: old stuff below...
'''
GET info?oshash=a41cde31c581e11d
> {
"movie_id": 0123456, ??
"oshash": "a41cde31c581e11d",
"sha1":..,
"md5":..
"duration": 5.266667,
"video": [],
"audio": [],
"path": "E/Example, The/An Example.avi",
"size": 1646274
}
'''
def file_info(request):
oshash = request.GET['oshash']
f = models.MovieFile.objects.get(oshash=oshash)
response = f.json()
return render_to_json_response(response)
'''
GET subtitles?oshash=a41cde31c581e11d
> {
"languages": ['en', 'fr', 'de']
}
GET subtitles?oshash=a41cde31c581e11d&language=en
> srt file
POST subtitle?oshash=a41cde31c581e11d&language=en
srt =
'''
def subtitles(request):
oshash = request.GET['oshash']
language = request.GET.get('language', None)
if request.method == 'POST':
user = request.user
sub = models.Subtitles.get_or_create(user, oshash, language)
sub.srt = request.POST['srt']
sub.save()
else:
if language:
q = models.Subtitles.objects.filter(movie_file__oshash=oshash, language=language)
if q.count() > 0:
return HttpResponse(q[0].srt, content_type='text/x-srt')
response = {}
l = models.Subtitles.objects.filter(movie_file__oshash=oshash).values('language')
response['languages'] = [f['language'] for f in l]
return render_to_json_response(response)
'''
GET list
> {
"files": {
"a41cde31c581e11d": {"path": "E/Example, The/An Example.avi", "size":1646274},
}
}
'''
@login_required_json
def list_files(request):
response = {}
response['files'] = {}
qs = models.UserFile.filter(user=request.user)
p = Paginator(qs, 1000)
for i in p.page_range:
page = p.page(i)
for f in page.object_list:
response['files'][f.movie_file.oshash] = {'path': f.path, 'size': f.movie_file.size}
return render_to_json_response(response)
def find_files(request):
response = {}
query = _parse_query(request)
response['files'] = {}
qs = models.UserFile.filter(user=request.user).filter(movie_file__movie__id__in=query['q'])
p = Paginator(qs, 1000)
for i in p.page_range:
page = p.page(i)
for f in page.object_list:
response['files'][f.movie_file.oshash] = {'path': f.path, 'size': f.movie_file.size}
return render_to_json_response(response)
'''
POST metadata
> file: {
"duration": 5.266667,
"video_codec": "mpeg1",
"pixel_format": "yuv420p",
"width": 352,
"height": 240,
"pixel_aspect_ratio": "1:1",
"display_aspect_ratio": "22:15",
"framerate": "30:1",
"audio_codec": "mp2",
"samplerate": 44100,
"channels": 1,
"path": "E/Example, The/An Example.avi",
"size": 1646274
"oshash": "a41cde31c581e11d",
"sha1":..,
"md5":..
}
'''
#@login_required_json
def add_metadata(request, archive):
info = json.loads(request.POST['file'])
oshash = info['oshash']
archive = models.Archive.objects.get(name=archive)
if archive.users.filter(user=request.user).count() == 1:
user_file = models.ArchiveFile.get_or_create(archive, oshash)
user_file.update(request.POST)
response = {'status': 200}
else:
response = {'status': 404}
return render_to_json_response(response)
class StillForm(forms.Form):
still = forms.FileField()
position = forms.FloatField()
#@login_required_json
def add_still(request, oshash):
response = {'status': 500}
f = get_object_or_404(models.File, oshash=oshash)
form = TimelineForm(request.POST, request.FILES)
if form.is_valid():
ff = form.cleaned_data['still']
position = form.cleaned_data['position']
still = models.Still(file=f, position=position)
still.save()
still.still.save(ff, ff.name)
response = {'status': 200}
response['url'] = still.url()
return render_to_json_response(response)
class TimelineForm(forms.Form):
timeline = forms.FileField()
#FIXME: should everybody be able to overwrite timelines?
#@login_required_json
def add_timeline(request, oshash):
response = {'status': 500}
f = get_object_or_404(models.File, oshash=oshash)
form = TimelineForm(request.POST, request.FILES)
if form.is_valid():
ff = form.cleaned_data['timeline']
f.timeline.save(ff.name, ff)
response = {'status': 200}
response['url'] = f.timeline.url()
return render_to_json_response(response)
class VideoForm(forms.Form):
video = forms.FileField()
#@login_required_json
def add_video(request, oshash):
response = {'status': 500}
f = get_object_or_404(models.File, oshash=oshash)
form = VideoForm(request.POST, request.FILES)
if form.is_valid():
ff = form.cleaned_data['video']
f.stream128.save(ff.name, ff)
response = {'status': 200}
response['url'] = f.stream128.url()
return render_to_json_response(response)
def apidoc(request):
'''
this is used for online documentation at http://127.0.0.1:8000/api/
'''
import sys
def trim(docstring):
if not docstring:
return ''
# Convert tabs to spaces (following the normal Python rules)
# and split into a list of lines:
lines = docstring.expandtabs().splitlines()
# Determine minimum indentation (first line doesn't count):
indent = sys.maxint
for line in lines[1:]:
stripped = line.lstrip()
if stripped:
indent = min(indent, len(line) - len(stripped))
# Remove indentation (first line is special):
trimmed = [lines[0].strip()]
if indent < sys.maxint:
for line in lines[1:]:
trimmed.append(line[indent:].rstrip())
# Strip off trailing and leading blank lines:
while trimmed and not trimmed[-1]:
trimmed.pop()
while trimmed and not trimmed[0]:
trimmed.pop(0)
# Return a single string:
return '\n'.join(trimmed)
functions = filter(lambda x: x.startswith('api_'), globals().keys())
api = []
for f in sorted(functions):
api.append({
'name': f[4:],
'doc': trim(globals()[f].__doc__).replace('\n', '<br>\n')
})
context = RequestContext(request, {'api': api})
return render_to_response('api.html', context)